<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
	.wrap{
		border:5px solid black;
		width: 300px;
		position: relative;
	}
	.wrap img{width: 100%;}
	.wrap img:nth-child(2){
		position: absolute;
		top: 0;
		left: 0;
		display: none;
		/*opacity: 0;*/
		/*transition: 1s;*/
	}
	/*.wrap:hover img:nth-child(2) {opacity: 1}*/
	</style>
</head>
<body>
	<div class="wrap">
		<img src="img/example33.jpg" alt="">
		<img src="img/example34.jpg" alt="">
	</div>
	<div class="wrap">
		<img src="img/example33.jpg" alt="">
		<img src="img/example34.jpg" alt="">
	</div>
	<div class="wrap">
		<img src="img/example33.jpg" alt="">
		<img src="img/example34.jpg" alt="">
	</div>
	<div class="wrap">
		<img src="img/example33.jpg" alt="">
		<img src="img/example34.jpg" alt="">
	</div>
	<div class="wrap">
		<img src="img/example33.jpg" alt="">
		<img src="img/example34.jpg" alt="">
	</div>
</body>
<script type="text/javascript" src="js/jquery-3.0.0.min.js"></script>
<script type="text/javascript">
$(".wrap").hover(function () {
	$(this).children().eq(1).stop().fadeIn();
},function(){
	$(this).children().eq(1).stop().fadeOut();
})
</script>
</html>